Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2011

Pension Plans

Defined Benefit Plan Disclosure

Schedule of Net Benefit Costs

The components of net pension expense for the Company’s two defined benefit non-contributory pension plans and certain nonqualified supplemental pension plans were:

	Three months ended June 30,						Six months ended June 30,
(in thousands)	2011			2010			2011			2010
Components of net periodic benefit cost:
Service cost	$	2,293		$	2,144		$	4,586		$	4,287
Interest cost	2,740			2,841			5,480			5,683
Expected long-term return on assets	(3,868		)	(3,229		)	(7,736		)	(6,458		)
Actuarial loss	1,609			1,443			3,218			2,887
Prior service cost amortization	124			124			248			248
Net periodic expense	$	2,898		$	3,323		$	5,796		$	6,647

Postretirement Benefit Plans

Defined Benefit Plan Disclosure

Schedule of Net Benefit Costs

The components of net periodic postretirement benefit expense for the Company’s postretirement benefit plans were:

	Three months ended June 30,						Six months ended June 30,
(in thousands)	2011			2010			2011			2010
Components of net periodic benefit cost:
Service cost	$	442		$	516		$	885		$	1,032
Interest cost	1,111			1,208			2,222			2,417
Expected long-term return on assets	(1,104		)	(996		)	(2,209		)	(1,993		)
Transition amortization	479			479			958			958
Net periodic expense	$	928		$	1,207		$	1,856		$	2,414